For example...

For example: اِحدَودَبَ (It was bent outward) There are ten forms of triliteral verbs with increase letters.[^3] No, in order to know which forms are applied to which verbs one must refer to dictionaries. For example form IV and XII are not applied to the verb فَتَحَ [^1]: The number of the forms is according to the Hans Wehr dictionary. They can be found on page 13 of the introduction of the compact version of the internationally recognized fourth edition.